WO2021115271A1

WO2021115271A1 - Head-mounted device support and head-mounted device

Info

Publication number: WO2021115271A1
Application number: PCT/CN2020/134597
Authority: WO
Inventors: 冉可
Original assignee: Oppo广东移动通信有限公司
Priority date: 2019-12-10
Filing date: 2020-12-08
Publication date: 2021-06-17
Also published as: US20220299782A1; EP4071540A4; EP4071540A1

Abstract

A head-mounted device support and a head-mounted device. The head-mounted device support comprises a telescopic arm (11), a tightness adjustment mechanism (2), and a control module (3). The telescopic arm (11) has an initial length; the tightness adjustment mechanism (2) is connected to the telescopic arm (11) for use in adjusting the telescopic length of the telescopic arm (11); and the control module (3) is electrically connected to the tightness adjustment mechanism (2), and controls the tightness adjustment mechanism (2) according to an adjustment signal so as to drive the telescopic arm (11) to move, so that the telescopic length is extended from the initial length or retracted to a target length. The head-mounted device support is capable of improving the wearing convenience.

Description

Head-mounted equipment bracket and head-mounted equipment

Technical field

The present disclosure relates to an electronic device, in particular to a head-mounted device support and a head-mounted device.

Background technique

Common head-mounted smart devices are fixed on the user's head through a strap and a strap buckle, and the fabric of the strap buckle is tightened by a magic hook to increase the tightening force and play a fixed role, or through a plastic headband gear The locking mechanism cooperates with foam and PU to play a fixed role. This method requires the user to manually adjust the strap every time the headset is worn, which increases the complexity of wearing.

However, if the automatic contraction wearing is realized by electric mode, the user needs to understand the appropriate head wearing size and then input the corresponding instructions. Therefore, the user may repeatedly adjust the wearing tightness to achieve a comfortable wearing effect. This can be seen This method still has high wearing complexity.

Summary of the invention

The headset holder proposed in the present disclosure can improve the convenience of wearing.

To solve the above technical problems, the present disclosure adopts the following technical solutions:

According to one aspect of the present disclosure, the present disclosure proposes a head-mounted device holder, including:

A head-mounted device support, including:

A telescopic arm having a first length;

A tightness adjustment mechanism, connected to the telescopic arm, for adjusting the telescopic length of the telescopic arm;

The control module is electrically connected to the elasticity adjustment mechanism, and according to the adjustment signal of the elasticity adjustment mechanism, controls the elasticity adjustment mechanism to drive the telescopic arm to move, so that the telescopic length is extended from the first length or Retract to the target length.

According to another aspect of the present disclosure, a headset holder is provided, including:

Telescopic boom

The control module is electrically connected to the elasticity adjustment mechanism, and controls the elasticity adjustment mechanism to be in an adjustment state or a stop state according to an adjustment signal; wherein, when the elasticity adjustment mechanism is in an adjustment state, the elasticity adjustment mechanism drives the The telescopic arm moves to change the telescopic length. When the elasticity adjustment mechanism is in a stopped state, the telescopic arm is fixed.

According to another aspect of the present disclosure, a head-mounted device is provided, which is characterized by comprising the head-mounted device holder and an imaging lens, the imaging lens being mounted on the head-mounted device holder; or, It includes the head-mounted equipment support and imaging lens, and the imaging lens is installed on the head-mounted equipment support.

In summary, the present application uses the elasticity adjustment mechanism to automatically adjust the overlap size of the two telescopic arms during the wearing process; and the control module of the present disclosure can control the elasticity adjustment mechanism according to the adjustment signal The telescopic arm is driven to move, so that the telescopic length is extended from the first length or retracted to the target length, so that the wearing size enclosed by the telescopic arm can exactly fit the size of the user's head. Therefore, the present disclosure Improve the convenience of wearing.

Description of the drawings

Fig. 1 is an exploded view showing the structure of the head-mounted device of the present disclosure according to an embodiment;

2 is a circuit control block diagram of an embodiment of the head-mounted device of the present disclosure;

FIG. 3 is a schematic structural view of the assembly structure of the pressure member and the front shell in FIG. 1 from a perspective;

Figure 4 is a cross-sectional view of the structure in Figure 3;

Figure 5 is a diagram of the state of use of the head-mounted device after the rear case is hidden in Figure 1;

Figure 6 is a cross-sectional view of the head-mounted device of the present disclosure along the thickness direction;

Fig. 7 is a circuit control block diagram of another embodiment of the head-mounted device of the present disclosure;

FIG. 8 is a schematic structural view of an embodiment of a second elastic member and a second metal sheet;

FIG. 9 is a schematic diagram of another embodiment of the second elastic member and the second metal sheet.

Attached icon number description:

1. Support body; 11. Telescopic arm; 111, First telescopic arm; 112, Second telescopic arm; 12. Guide groove;

2. Tightness adjustment mechanism; 21. Adjustment gear; 22. Drive assembly; 221. Drive circuit; 23. Gear bracket;

3. Control module; 4. Housing components; 41, front housing; 411, first power supply housing; 4111, giving way hole; 42, rear housing; 43, first switch; 431, first metal sheet; 432, first An elastic piece;

5. Force member; 51, elastic pad; 52, pusher; 521, support piece; 522, thimble; 511, installation groove;

61. The second metal piece; 62. The second elastic piece; 621. The second elastic piece; 63. The third metal piece; 64. The third elastic piece; 641. The third elastic piece; 6211. The first bending part; 6212. The second bending part.

Detailed ways

Although the present disclosure can be easily expressed in different forms of embodiments, only some of the specific embodiments are shown in the drawings and described in detail in this specification. At the same time, it is understood that this specification should be regarded as the present specification. An exemplary description of the principles of the disclosure is not intended to limit the present disclosure to what is described herein.

Therefore, a feature pointed out in this specification will be used to describe one of the features of an embodiment of the present disclosure, instead of implying that each embodiment of the present disclosure must have the described feature. In addition, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other unspecified combinations. Thus, unless otherwise stated, the illustrated combinations are not intended to be limiting.

In the embodiment shown in the drawings, the direction indications (such as up, down, left, right, front and back) are used to explain the structure and movement of various elements of the present disclosure not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the directions of these directions also change accordingly.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms, and should not be construed as being limited to the examples set forth herein; on the contrary, these example embodiments are provided so that the description of the present disclosure will be more comprehensive and complete, and the concept of the example embodiments Comprehensively communicate to those skilled in the art. The drawings are only schematic illustrations of the present disclosure, and are not necessarily drawn to scale. The same reference numerals in the figures denote the same or similar parts, and thus their repeated description will be omitted.

Hereinafter, the preferred embodiments of the present disclosure will be further described in detail in conjunction with the accompanying drawings in this specification.

The head-mounted device of this embodiment includes a head-mounted device holder and an imaging lens. The imaging lens is installed on the lens frame. The head-mounted device can be applied to multiple fields, for example, games, movies, education, military, medical, enterprise, e-commerce and other fields. The application field of the head-mounted device is not limited here. In addition, the head-mounted device may be 3D glasses, virtual reality VR (Virtual Reality) glasses, mixed reality AR (Augmented Reality) glasses, and the like.

Specifically, in this embodiment, the head-mounted device uses AR glasses as an example for description, and other embodiments will not be repeated.

AR glasses will make the scene that the user sees a combination of virtual pictures and real life. AR glasses can realize many functions and can be regarded as a miniature mobile phone, which can realize the trajectory of the eyeball to judge the current state of the user and enable the corresponding function.

The imaging lens is used to image the image of AR glasses. There can be one or more imaging lenses. According to different needs, the number of imaging lenses can be designed accordingly. The number of imaging lenses is not limited here.

The application discloses a head-mounted device support, which includes a telescopic arm, a tightness adjustment mechanism, and a control module. The telescopic arm has a first length; the elasticity adjustment mechanism is connected to the telescopic arm for adjusting the telescopic length of the telescopic arm; the control module is electrically connected to the elasticity adjustment mechanism, and controls the elasticity adjustment mechanism according to the adjustment signal for controlling the elasticity adjustment mechanism. The elasticity adjustment mechanism drives the telescopic arm to move, so that the telescopic length is extended or retracted from the first length to a target length.

In an embodiment, the head-mounted device support includes a support main body, and the support main body may include a mainframe housing and a telescopic arm connected to the mainframe housing. There is one telescopic arm, and the elasticity adjusting mechanism is installed on the telescopic arm, or is arranged at the connection point between the telescopic arm and the main body shell. A winding assembly may be provided in the elasticity adjustment mechanism to adjust the length of the telescopic arm by winding the telescopic arm.

In another embodiment, there are two telescopic arms. This embodiment will be described in detail below. Please refer to FIG. 1. FIG. 1 is an exploded view showing the structure of the head-mounted device of the present disclosure according to an embodiment. The frame body 1 includes a lens frame and two telescopic arms 11 arranged on both sides of the lens frame. The two telescopic arms 11 overlap each other to make the stent body 1 in a closed ring shape. The lengths of the two telescopic arms 11 are the same, and the overlap of the two telescopic arms 11 is located at the rear end of the support body 1, corresponding to the back of the user's head. It can be understood that by adjusting the length of the two telescopic arms 11, the overlap of the two telescopic arms 11 can also be located in other positions of the stent body 1. For example, the overlap of the two telescopic arms 11 can also correspond to the user's ears, both sides of the forehead, etc. .

The free ends of the two telescopic arms 11 are provided with overlapping parts. The two overlapping parts overlap each other to form a closed ring shape. The two telescopic arms 11 move relative to each other or move away from each other, and the overlapping length of the two overlapping parts can be adjusted, so that the circumference of the stent body 1 can be adjusted to suit different sizes of heads. It can be understood that the overlapping portion may be located at one end of the telescopic arm 11 or at other positions such as the middle portion of the telescopic arm 11, and the position of the overlapping portion is not limited here. When the two telescopic arms 11 move relative to each other, the overlapping length increases, and the circumference of the stent body 1 decreases to achieve a tightening effect; when the two telescopic arms 11 move away from each other, the overlapping length decreases, and the circumference of the stent body 1 increases to achieve Relaxing effect.

Specifically, in this embodiment, the slack adjustment mechanism 2 adjusts the overlapping length of the two telescopic arms 11. In one embodiment, the tightness adjustment mechanism 2 includes an adjustment gear 21 and a drive assembly 22; the adjustment gear 21 is located at the overlap of the two telescopic arms 11 and is meshed and connected with the two telescopic arms 11; the drive assembly 22 is drivingly connected to the adjustment gear 21 and It is electrically connected to the control module 3. Specifically, the control module 3 sends a control signal so that the drive assembly 22 drives the adjustment gear 21 to rotate.

In an example, the two overlapping portions are respectively provided with guide grooves 12 to allow the two telescopic arms 11 to move relative to each other along the guide groove 12. In addition, teeth are provided on the inner side wall of the guide groove 12. The guide slot 12 is long and narrow, with a rectangular slot. The inner side wall of the guide groove 12 along the length direction is provided with teeth, so that the inner side wall of the guide groove 12 forms a structure similar to a rack. Specifically, one side of the guide groove 12 of one telescopic arm 11 is provided with teeth, and the other inner side wall of the guide groove 12 of the other telescopic arm 11 is also provided with teeth. The teeth are arranged oppositely, and are respectively located on two opposite sides of the guide groove 12.

Furthermore, the tightness adjustment mechanism 2 may further include a gear bracket 23 fixedly arranged on one side of the overlapping portion of the two telescopic arms 11. The gear bracket 23 is provided with mounting holes, and the gear bracket 23 is fixedly installed on the lap part of the inner telescopic arm 11 through the mounting holes.

Specifically, in this embodiment, the gear bracket 23 is disposed inside the bracket body 1, and the gear bracket 23 is disposed opposite to the guide groove 12. The gear bracket 23 corresponds to the position of the back of the user's head, and the outer side surface of the gear bracket 23 is a curved surface, which is adapted to the shape of the back of the head.

It can be understood that in other manners, the guide groove 12 may be omitted. The two telescopic arms 11 can be relatively staggered, and the opposite sides of the two telescopic arms 11 are both meshed with gears. Therefore, as long as the two telescopic arms 11 can mesh with the gears at the same time, when the two telescopic arms 11 move relative to each other, the gears can be driven to rotate.

Please participate in 1 and FIG. 2, where FIG. 2 is a circuit control block diagram of an embodiment of the head-mounted device of the present disclosure. The driving assembly 22 is drivingly connected with the adjusting gear 21, and the driving assembly 22 drives the adjusting gear 21 to rotate to adjust the overlapping length of the overlapping parts of the two telescopic arms 11. In an embodiment, the drive assembly 22 may include a motor, a speed changer, and a drive plate. Wherein, the motor may be a stepping motor, the input end of the speed changer is connected with the output shaft of the stepping motor, and the output end gear of the speed changer meshes with the adjustment gear 21, so that the adjustment gear 21 is driven to rotate by the motor to drive the first telescopic arm 111 and the second telescopic arm 112 move relative or opposite to each other; a drive circuit 221 is arranged on the drive board, and the drive circuit 221 is used to control the motor rotation after digital-to-analog conversion and amplification of the control signal sent by the control module 3.

In other manners, the driving assembly 22 may also be a pneumatic mechanism. The air cylinder drives the adjusting gear 21 to rotate to drive the first telescopic arm 111 and the second telescopic arm 112 to move relative to each other or opposite to each other.

In an embodiment, the housing assembly 4 may include a housing and a first switch 43 provided on the housing. The housing includes a front case 41 and a rear case 42. Both the front shell 41 and the rear shell 42 may be made of hard materials. The front shell 41 is arranged inside the bracket body 1, that is, on the side of the area enclosed by the bracket body 1, and the front shell 41 is arranged at a position corresponding to the overlapping part of the two telescopic arms 11. The rear shell 42 is arranged on the outside of the bracket body 1 and is engaged with the front shell 41. The housing assembly 4 can accommodate two telescopic arms 11 and a tightness adjustment mechanism 2, and can also be used to accommodate a battery of a head-mounted device.

The front housing 41 can be made of a hard material, and it can include a first channel housing and a first power supply housing 411 extending downwardly from the first channel housing. The back shell 42 may be made of a hard material, and it may include a second channel shell corresponding to the above-mentioned first channel shell and a second power shell corresponding to the above-mentioned first power shell 411, and a battery is installed inside the second power shell. The second power supply shell and the battery installed in it can constitute a power supply assembly. The second channel housing and the second power supply housing are separated by a partition plate.

After the front shell 41 and the rear shell 42 are fastened together, the first channel shell and the second channel shell form a channel for the two telescopic arms 11 to extend; The space can be defined as the first accommodating cavity, and the space below the partition plate can be defined as the second accommodating cavity; the first accommodating cavity is connected to the channel, and the two can be defined as the first channel together; In addition to the overlapped first headband and second headband, the elastic adjustment mechanism 2 can also be accommodated to adjust the length of the overlapping portion of the first headband and the second headband, thus forming the entity of the channel and the first receiving cavity The part can also be defined as the headband and the elasticity adjustment mechanism 2 housing (also can be defined as the first housing); the second housing cavity is used to house the power supply, such as the battery, can be defined as the power supply housing (also can be defined as the second case).

Understandably, after the front housing 41 and the rear housing 42 are buckled together, the body of the first power supply housing 411, the second power supply housing and the first channel housing can be defined as the first housing; and the first housing located on both sides of the first housing A channel shell and a second channel shell can be defined as a second shell.

In an example, the two signal output terminals V+ and V- of the control module 3 are used to output motor control signals. When the signal output from the V+ terminal is the first signal, it is used to control the forward rotation of the motor so that the two telescopic arms 11 move relative to each other and tighten the head-mounted device bracket; when the signal output from the V- terminal is the second signal, it is used to make the The two telescopic arms 11 move back to each other to loosen the head-wearing equipment bracket.

In this application, the control module 3 may be a separate MCU, a single-chip microcomputer, or a main control chip of a head-mounted device. The control module 3 can send a control signal to control the forward and reverse rotation of the motor. In this application, the control module 3 is electrically connected to the elasticity adjustment mechanism, and according to the adjustment signal of the elasticity adjustment mechanism, controls the elasticity adjustment mechanism 2 to drive the telescopic arm to move, so that the telescopic length is reduced by the first The length is extended or retracted to the target length.

Here, the first length may be a fixed length, for example, the initial length. It can also be a length that can be set for the user.

The first length can also be an arbitrary length, in which case the first length is an indeterminate value.

The length of the telescopic arm 11 can be understood as the length that the telescopic arm 11 contributes to the telescopic arm 11 in the ring enclosed by the telescopic arm and the front shell. The first length of the telescopic arm 11 may be arbitrary. The target length of the telescopic arm 11 can be understood here as the length of the telescopic arm adapted to the size of the user's head, which can be equal to the first length of the telescopic arm 11.

The control module 3 is used to receive the adjustment signal. The source of the regulation signal can have at least three forms. The source of the regulation signal can have at least three forms:

In an embodiment, a button is provided on the bracket body 1, and the user can send an adjustment signal for adjusting the size of the telescopic arm 111 to the elasticity adjustment mechanism 2 by pressing the button.

In another embodiment, the control module 3 has a memory unit and a detection unit. The detection unit is used to confirm the user's identity. The memory unit can store the user's head size. Therefore, when the detection unit confirms the user's identity, the memory unit That is, the relevant information of the user can be retrieved to generate an adjustment signal, so that the length of the telescopic arm adjusted by the elasticity adjustment mechanism can exactly match the size of the user's head. The detection unit here can be a face recognition unit or a fingerprint recognition unit.

In another embodiment, the head-mounted device holder further includes a pressure sensor, which can be arranged on the housing assembly 4 or the telescopic arm 11. When the user wears the head-mounted device, the pressure sensor can directly or indirectly sense When the pressure reaches a certain level, the pressure sensor is triggered to send a signal to the control module 3, so that the control circuit 3 controls the tightness adjustment mechanism to stop working.

In another embodiment, the head-mounted device holder further includes a first switch 43 and a force receiving member 5, wherein the first switch 43 is used to turn on or off the control module 3 and the tightness adjustment mechanism 2 electrical connection path; the force receiving member 5 has a moving state and an initial state, when the force receiving member 5 is in the moving state under the action of an external force, the force receiving member 5 can be connected to the first The switch 43 contacts to disconnect the electrical connection path, and the length of the telescopic arm 11 is at the target length; when the force receiving member is in the initial state, the force receiving member 5 and the first switch 43 There is a gap therebetween, and the electrical connection path is conductive.

Please refer to Figs. 3 and 4. Fig. 3 is a structural schematic view of the assembly structure of the pressure member and the front shell in Fig. 1 from a perspective; Fig. 4 is a cross-sectional view of the structure in Fig. 3. There may be many forms of the first switch 43. In one embodiment, the first switch 43 includes a first metal sheet 431 and a first elastic member 432 disposed on the housing, and the first metal sheet 431 and the The first elastic member 432 is connected in series between the control module 3 and the elasticity adjusting mechanism 2, and the first metal sheet 431 is overlapped with the first elastic member 432 to be electrically connected.

In one example, the first metal sheet 431 is provided on the front side of the power supply housing. The first metal piece 431 is substantially arc-shaped, one end is connected to the power supply case, and the other end is used to overlap the first elastic member 432. The first elastic member 432 includes a first elastic piece. One end of the first elastic piece is connected to the power supply case, and the other end is overlapped with the inner side of the first metal piece 431. Due to the elastic force of the first elastic piece, the first elastic piece can be held against The inner side of the first metal piece 431 realizes the electrical connection between the two.

For example, the 3V+ terminal of the control module can be connected to the first elastic member 432 by means of flat wire or metal wire welding, and the first metal piece 431 is electrically connected to the input terminal of the driving circuit 221. Therefore, when the first elastic member 432 and the first metal When the slice 431 is electrically connected, the first control signal output by the 3V+ terminal of the control module can be output to the drive circuit 221, so that the motor can work normally. Therefore, when the first elastic piece is separated from the first metal piece 431, the first control signal output from the 3V+ terminal of the control module cannot be output to the driving circuit 221, so the motor stops working, and the two telescopic arms 11 stop relative movement.

The force receiving member 5 shown in FIGS. 1 to 3 includes an elastic pad 51 and a pusher 52 arranged on the elastic pad 51; the force receiving member 5 is connected to the housing assembly 4, and the elastic pad 51 is for the user's head to contact. The ejector 52 extends along the thickness direction of the elastic pad 51 and is provided corresponding to the first elastic member 432; when the elastic pad 51 is deformed under pressure to a certain degree, the ejector 52 can push the first elastic member 432 away from the first metal sheet 431 , To cut off the transmission path of the first control signal.

In an example, the elastic pad 51 is a soft pad. The soft pad may correspond to the position of the back of the user's head, the force receiving member 5 may also include a fixing plate, the soft pad is wrapped on the fixing plate, and the shape of the fixing plate is the same as that of the first power shell 411 of the front shell 41 of the housing assembly 4. Match the shape and size. The force receiving member 5 can be fixed to the housing assembly 4 by a snap, or it can be bonded to the housing assembly 4 by glue.

The ejector 52 is disposed in the elastic pad 51. Specifically, in an embodiment, the soft pad has a leather case and a soft material filled in the leather case, such as sponge. The elastic pad 51 is provided with an installation groove 511, the groove bottom of the installation groove 511 may be a leather sleeve, and the notch of the installation groove 511 faces the first elastic member 432. In order to match the shape of the soft pad, the bottom of the installation groove 511 may be arc-shaped.

The ejector 52 includes a supporting piece 521 and a thimble 522 arranged on the supporting piece 521. The supporting piece 521 is attached to the bottom of the mounting groove 511 to increase the contact area with the elastic pad 51. The thimble 522 extends in the direction of the notch of the installation groove 511.

Correspondingly, a relief hole 4111 is provided on the front shell 41; the overlapping position of the first elastic member 432 and the first metal sheet 431 is on one side of the relief hole 4111. When the first elastic member 432 is pushed by the ejecting member 52, the first elastic member 432 can move toward the relief hole 4111 to separate from the first metal sheet 431, thereby achieving electrical connection between the first metal sheet 431 and the first elastic member 432 The disconnection.

When the user wears the head-mounted device, as the elasticity adjustment mechanism 2 controls the adjustment gear 21 to continuously tighten the stent body 1, the user’s head will gradually squeeze the elastic pad 51 so that the elastic pad 51 is in the thickness direction. Is compressed. It can be understood that the greater the degree of tightening of the stent body 1, the greater the degree of compression of the elastic pad 51 in the thickness direction. At the same time, when the elastic pad 51 is compressed in the thickness direction, the support piece 521 is displaced along the thickness direction of the elastic pad 51, so that the thimble 522 gradually moves in the direction of the first elastic member 432. When the pressure on the user’s head reaches a certain level, the user’s wearing comfort is just right. This corresponds to the thimble 522 being able to contact and push the first elastic member 432 so that the first elastic member 432 is separated from the first metal sheet 431 Therefore, the transmission path of the first control signal is cut off, so that the motor of the elasticity adjustment mechanism 2 stops working, and the size of the bracket body 1 is maintained at the current position. Therefore, this embodiment realizes the automatic adjustment of the bracket body 1 according to the wearing comfort. The purpose of the size.

It is understandable that the length of the thimble 522 can be designed according to the degree of compression of the soft cushion in the thickness direction when the user feels comfortable to wear; so that when the size of the stent body 1 is adjusted, once the soft cushion is compressed to a certain degree To a certain extent, the thimble 522 can just move to a position capable of pushing the first elastic member 432 away from the first metal piece 431.

In the above embodiment, the elastic pad 51 is provided on the front shell 41. In other embodiments, the elastic pad 51 may be directly connected to the bracket body 1 and located inside the bracket body 1 for contact with the user's head.

The first switch 43 in the above embodiment can also be two movably connected metal sheets, the ejector 52 is an insulating sheet, and the ejector 52 can extend between the two metal sheets to disconnect the two metal sheets. Electrical connection. The first switch 43 may also be a switch circuit with a button, and the pusher 52 triggers the button to turn off the switch circuit.

In summary, in the present application, the pusher 52 is provided on the elastic pad 51 and the first metal sheet 431 and the first elastic member 432 are provided on the housing assembly 4. During the wearing process, the elasticity adjustment mechanism 2 is used to automatically adjust the overlap size of the two telescopic arms 11. And when the elastic pad 51 is pressed to a certain degree, the ejector 52 can push the first elastic member 432 away from the first metal sheet 431 to cut off the transmission path of the first control signal, so that the elasticity adjustment mechanism 2 stops working, and the support body The size of 1 is maintained at the current position, so this embodiment realizes that the size of the stent body 1 is automatically adjusted according to the comfort of wearing, which improves the convenience of wearing.

In the process of automatically adjusting the size of the stent body 1 through the tightening adjustment mechanism, when the stent body 1 is tightened or loosened to the limit position, that is, when the two telescopic arms 11 move to the maximum size or the minimum size that can be overlapped, no further adjustment is possible When the motor that tightens the adjustment mechanism continues to rotate, the motor will be in a locked-rotor state and generate louder noise, and even cause damage to the motor.

In the following embodiments, the problem that the motor is blocked when the bracket body 1 is tightened or loosened to the limit position will be solved.

In the present application, the head-mounted device holder further includes a second switch for turning on or disconnecting the electrical connection path between the control module and the elasticity adjustment mechanism 2; the telescopic arm 11 It has a contraction limit position. When the length of the telescopic arm 11 is at the contraction limit position, the second switch disconnects the electrical connection path between the control module 3 and the elasticity adjustment mechanism 2.

The second switch can have a variety of structural forms, for example, it can be a single-pole double-throw switch. The second switch can also be a piezoelectric switch. When the telescopic arm 11 has a contraction limit position, the piezoelectric switch can be pressed to trigger the piezoelectric switch, and the elasticity adjustment mechanism 2 stops working in response to the output signal of the piezoelectric switch. , So that the telescopic arm 11 can be maintained at the current length.

Please refer to FIGS. 5 and 6. FIG. 5 is a view of the use state of the head-mounted device after the rear case is hidden in FIG. 1; FIG. 6 is a cross-sectional view of the head-mounted device of the present disclosure along the thickness direction. Specifically, in one embodiment, a second metal sheet 61 is further provided on the housing assembly 4, and the second metal sheet 61 extends along the length direction of the telescopic arm 11; the telescopic arm 11 is provided on the side facing the second metal sheet 61 There is a second elastic element 62; the second elastic element 62 and the second metal sheet 61 are both connected in series between the control module 3 and the elasticity adjustment mechanism 2, and the second elastic element 62 is in contact with the second metal sheet 61 to be electrically connected; The two elastic members 62 can move to the outside of the end of the second metal sheet 61 with the telescopic arm 11 to cut off the transmission path of the first control signal.

In an example, the second metal sheet 61 is provided on the rear shell 42 of the housing assembly 4. The second elastic member 62 has a strip shape and is disposed on one of the two telescopic arms 11 close to the rear shell 42 assembly. Taking the orientation of the head-mounted device when normally worn as a reference, the second metal sheet 61 may be arranged at a position close to the upper edge of the rear shell 42.

Here, one of the two telescopic arms 11 that is close to the front shell 41 is called the first telescopic arm 111, and the one that is close to the rear shell 42 is called the second telescopic arm 112; the second elastic member 62 is located on the rear shell 42. And the second telescopic arm 112, and the second elastic member 62 is in contact with the second metal sheet 61 under the action of its own elastic elastic force to achieve electrical connection.

When the two telescopic arms 11 are contracted, the second elastic member 62 on a telescopic arm 11 close to the rear shell 42 fits and slides on the second metal sheet 61, so that the first control signal sent by the control module 3 can be normally transmitted to The drive board of the tension control mechanism. When the second elastic member 62 slides to the outside of the end of the second metal sheet 61, the electrical connection between the second elastic member 62 and the second metal sheet 61 is disconnected, so that the first control signal sent by the control module 3 can be obtained. It cannot be transmitted to the drive board of the tension control mechanism, so that the motor stops working.

Here, the position where the second elastic member 62 moves to the end of the second metal sheet 61 corresponds to the maximum length position where the two telescopic arms 11 can overlap, that is, corresponds to the tightening limit position of the bracket body 1. It can also correspond to the vicinity of the maximum length position where the two telescopic arms 11 can overlap, that is, the position that is approaching the tightening limit.

It can be seen that, in this embodiment, through the arrangement of the second metal sheet 61 and the second metal sheet 61, when the two telescopic arms 11 can be overlapped at the maximum length position, the second metal sheet 61 and the second metal sheet 61 are disconnected from the electricity. Connected so that the motor cannot receive the first control signal, so that the motor automatically stops working, thereby eliminating the occurrence of stall phenomenon, ensuring the working safety of the head-mounted electronic device and improving the user experience.

The implementation of the second elastic member 62 will be described in the following embodiments.

Please refer to FIG. 8, which is a schematic structural view of an embodiment of a second elastic member and a second metal sheet; in an embodiment, the second elastic member 62 includes a second elastic sheet 621, and the second elastic sheet 621 includes a connected first A bending portion 6211 and a second bending portion 6212; the side of the first bending portion 6211 away from the second bending portion 6212 is a connecting plane, and the connecting plane is connected to the surface of the telescopic arm 11; the second elastic piece 621 The bent portion 6212 is for the second metal piece 61 to contact.

In an example, the first bending portion 6211 is substantially U-shaped, and the second bending portion 6212 is connected to an arm of the first bending portion 6211 and is substantially hook-shaped. The connection plane on the first bending portion 6211 can achieve surface-to-surface contact with the telescopic arm 11, thereby improving the connection stability. Specifically, the connection can be made by bonding. The structure of the second elastic member 62 in this embodiment has two bending parts, so it has a good elastic force to ensure reliable contact with the second metal sheet 61.

Please refer to FIG. 7, which is a circuit control block diagram of another embodiment of the head-mounted device of the present disclosure. The first control signal output by the control module 3V+ terminal can be electrically connected to the second elastic member 62, and the second metal sheet 61 can be connected with the input terminal of the driving circuit 221, of course, it can also be the first control signal output by the control module 3V+ terminal It can be electrically connected to the second metal sheet 61, and the second elastic member 62 can be connected to the input terminal of the driving circuit 221. Therefore, when the second elastic member 62 is electrically connected to the second metal sheet 61, the driving circuit 221 can receive the first control signal, so that the motor can work normally.

It is worth mentioning that, since they are all used to transmit the first control signal, the first elastic element 432, the first metal sheet 431, the second elastic element 62, and the second elastic element 62 can be connected in series in the same loop.

Please refer to FIG. 9. FIG. 9 is a schematic structural view of another embodiment of the second elastic member and the second metal sheet. In another embodiment, the second elastic member 62 includes two second elastic pieces 621 arranged side by side, one second elastic piece 621 is for electrical connection with the control module 3, and the other second elastic piece 621 is for the drive circuit 221 of the elasticity adjustment mechanism 2 Electrically connected; the second bent portions 6212 of the two second elastic pieces 621 are connected to the second metal piece 61.

In this embodiment, the second metal sheet 61 functions to electrically connect the two second elastic sheets 621. Similarly, when the second elastic member 62 slides out of the end position of the second metal piece 61, the second metal piece 61 cannot be electrically connected to the two second elastic pieces 621, so that the drive circuit of the control module 3 and the elasticity adjustment mechanism 2 221 disconnects the electrical connection and the motor stops working.

Further, the head-mounted device holder further includes a third switch for turning on or disconnecting the electrical connection path between the control module and the tightness adjustment mechanism; the telescopic arm has a loosening In the limit position, when the length of the telescopic arm is in the release limit position, the third switch disconnects the electrical connection path between the control module and the tightness adjustment mechanism.

The third switch can have a variety of structural forms, for example, it can be a single-pole double-throw switch. The third switch can also be a piezoelectric switch. When the telescopic arm 11 has a contraction limit position, the piezoelectric switch can be pressed to trigger the piezoelectric switch, and the elasticity adjustment mechanism 2 stops working in response to the output signal of the piezoelectric switch. , So that the telescopic arm 11 can be maintained at the current length.

In an example, the control module 3 sends a second control signal to reduce the overlapping length of the two telescopic arms 11 to the elasticity adjustment mechanism 2; the housing assembly 4 is provided with a third metal sheet 63, which extends along the stretch The length of the arm 11 extends; the telescopic arm 11 is provided with a third elastic member 64 on the side facing the third metal sheet 63; the third elastic member 64 and the third metal sheet 63 are connected in series between the control module 3 and the elasticity adjustment mechanism 2. And the third elastic member 64 is in contact with the third metal sheet 63 to be electrically connected; the third elastic member 64 can move to the outside of the end of the third metal sheet 63 with the telescopic arm 11 to cut off the transmission path of the second control signal.

In an example, the third metal sheet 63 is provided on the rear shell 42 of the housing assembly 4. The third elastic member 64 has a strip shape and is disposed on one of the two telescopic arms 11 close to the rear shell 42 assembly. Taking the orientation of the head-mounted device when normally worn as a reference, the third metal sheet 63 may be arranged at a position close to the upper edge of the back shell 42.

Here, the position where the third elastic member 64 moves to the end of the third metal sheet 63 corresponds to the minimum length position where the two telescopic arms 11 can overlap, that is, corresponds to the loosening limit position of the bracket body 1. It may also correspond to the vicinity of the minimum length position where the two telescopic arms 11 can overlap, that is, the position that is about to approach the relaxation limit.

In an example, the second metal sheet 61 and the third metal sheet 63 are sequentially arranged corresponding to the extending direction of the telescopic arm 11, and there is an insulation gap between the second metal sheet 61 and the third metal sheet 63. In another example, the first metal sheet 431 and the second metal sheet 61 are integrally provided, and the first metal sheet 431 and the second metal sheet 61 may be isolated by an insulating member.

When the two telescopic arms 11 move away from each other to loosen the bracket body 1, the third elastic member 64 on a telescopic arm 11 close to the rear shell 42 is attached to the third metal sheet 63 and slides, so that the control module 3 sends out The second control signal can be normally transmitted to the drive board of the tension control mechanism. When the third elastic member 64 slides to the outside of the end of the third metal sheet 63, the electrical connection between the third elastic member 64 and the third metal sheet 63 is disconnected, so that the second control signal sent by the control module 3 can be obtained. It cannot be transmitted to the drive board of the tension control mechanism, so that the motor stops working.

It can be seen that, in this embodiment, through the arrangement of the third metal sheet 63 and the third metal sheet 63, when the two telescopic arms 11 relatively move to the minimum length position that can overlap, the motor cannot receive the first control signal, so that The motor automatically stops working, thereby eliminating the blocking phenomenon, ensuring the working safety of the head-mounted electronic device and improving the user experience.

The implementation of the third elastic member 64 will be described in the following embodiments.

In an embodiment, the third elastic member 64 includes a third elastic piece 641, and the third elastic piece 641 and the third elastic piece 641 include a first bending portion 6211 and a third bending portion that are connected; the first bending portion 6211 faces away from One side of the third bent portion is a connecting plane, and the connecting plane is connected to the surface of the telescopic arm 11; the third bent portion of the third elastic piece 641 is for the third metal piece 63 to contact.

In an example, the first bending portion 6211 is substantially U-shaped, and the third bending portion is connected to an arm of the first bending portion 6211 and is substantially hook-shaped. The connection plane on the first bending portion 6211 can achieve surface-to-surface contact with the telescopic arm 11, thereby improving the connection stability. Specifically, the connection can be made by bonding. The structure of the third elastic member 64 in this embodiment has two bending parts, so it has a good elastic force to ensure reliable contact with the third metal sheet 63.

In the figure, the second control signal output by the control module 3V- terminal can be electrically connected to the third elastic member 64, and the third metal piece 63 can be connected to the input terminal of the driving circuit 221. Of course, it can also be the second control signal output by the control circuit V+ terminal. A control signal can be electrically connected to the third metal sheet 63, and the third elastic member 64 can be connected to the input terminal of the driving circuit 221. Therefore, when the third elastic member 64 is electrically connected to the third metal sheet 63, the driving circuit 221 can receive the first control signal, so that the motor can work normally.

In another embodiment, the third elastic member 64 includes two third elastic pieces 641 arranged side by side, one third elastic piece 641 is for electrical connection with the control module 3, and the other third elastic piece 641 is for the drive circuit 221 of the elasticity adjustment mechanism 2 Electrically connected; the third bent portions of the two third elastic pieces 641 are connected to the third metal piece 63.

In this embodiment, the third metal piece 63 functions to electrically connect the two third elastic pieces 641. Similarly, when the third elastic member 64 slides out of the end position of the third metal piece 63, the third metal piece 63 cannot be electrically connected to the two third elastic pieces 641, so that the drive circuit of the control module 3 and the elasticity adjustment mechanism 2 221 disconnects the electrical connection.

In summary, the second elastic member 62 and the second metal sheet 61, the third elastic member 64 and the third metal sheet 63 are provided to control the tension adjustment mechanism 2 to stop working according to the tightening size of the two telescopic arms 11, thereby achieving The wearing of the head-mounted device is automatically adjusted to improve the convenience of wearing.

Although the present disclosure has been described with reference to a few typical embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present disclosure can be implemented in various forms without departing from the spirit or essence of the invention, it should be understood that the above-mentioned embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents shall be covered by the appended claims.

Claims

A head-mounted device support, which is characterized in that it comprises:

A telescopic arm having a first length;

A tightness adjustment mechanism, connected to the telescopic arm, for adjusting the telescopic length of the telescopic arm;

The control module is electrically connected to the elasticity adjustment mechanism, and according to the adjustment signal of the elasticity adjustment mechanism, controls the elasticity adjustment mechanism to drive the telescopic arm to move, so that the telescopic length is extended from the first length or Retract to the target length.
The head-mounted device holder according to claim 1, further comprising: a first switch and a force receiving member, wherein,

The first switch is used to turn on or disconnect the electrical connection path between the control module and the tightness adjustment mechanism;

The force-receiving member has a moving state and an initial state, and when the force-receiving member is in the moving state under the action of an external force, the force-receiving member can contact with the first switch to make the electrical connection When the path is disconnected, the length of the telescopic arm is at the target length; when the force receiving member is in the initial state, there is a gap between the force receiving member and the first switch, and the electrical connection path is conductive .
The head-mounted device holder according to claim 2, wherein the force-receiving member includes an elastic pad and a pusher provided on the elastic pad; the pusher corresponds to the first switch setting , And extend along the thickness direction of the elastic pad, the pusher can move toward the first switch when the elastic pad is compressed in the thickness direction, and trigger the first switch by contacting with the first switch The switch is turned off to cut off the electrical connection path.
The head-mounted device holder according to claim 3, wherein the first switch comprises a first metal sheet and a first elastic member arranged on the housing, and a mounting groove is provided on the elastic pad, and the The notch of the installation groove faces the first elastic member;

The ejector includes a supporting piece and a thimble arranged on the surface of the supporting piece, the supporting piece is attached to the bottom of the mounting groove, and the thimble extends in the direction of the notch of the mounting groove.
The head-mounted device support according to claim 4, wherein the head-mounted device support comprises a front shell fixed on the telescopic arm; the front shell is installed inside the telescopic arm;

The elastic pad is arranged on a side surface of the front shell facing away from the telescopic arm.
The head-mounted device holder according to claim 5, wherein a position corresponding to the notch of the mounting slot is provided with a relief hole on the front shell;

The overlapping position of the first elastic member and the first metal sheet is located on one side of the relief hole. When the pushing member pushes the first elastic member, the first elastic member faces the Said to make the hole move.
The head-mounted device holder according to claim 1, wherein the head-mounted device holder further comprises a second switch, and the second switch is used to turn on or disconnect the control module and the elastic The electrical connection path of the adjustment mechanism;

The telescopic arm has a contraction limit position, and when the length of the telescopic arm is at the contraction limit position, the second switch disconnects the electrical connection path between the control module and the tightness adjustment mechanism.
8. The headset holder of claim 7, wherein the second switch comprises:

The second metal sheet, the second metal sheet correspondingly extends along the length direction of the telescopic arm; the telescopic arm is provided with a second elastic member on the side facing the second metal sheet; Both metal sheets are connected in series between the control module and the elasticity adjustment mechanism, and the second elastic member is in contact with the second metal sheet to be electrically connected;

The second elastic member can move with the telescopic arm to the outside of the end of the second metal sheet to disconnect the electrical connection path between the control module and the elasticity adjustment mechanism.
8. The head-mounted device holder according to claim 8, wherein the head-mounted device holder further comprises a rear shell; the rear shell is arranged on the outer side of the telescopic arm;

The second metal sheet is arranged on the rear shell, and the second elastic member is arranged on one of the two telescopic arms that is close to the rear shell.
The head-mounted device holder according to claim 1, wherein the head-mounted device holder further comprises a third switch, and the third switch is used to turn on or disconnect the control module and the elastic The electrical connection path of the adjustment mechanism;

The telescopic arm has a loosening limit position, and when the length of the telescopic arm is at the loosening limit position, the third switch disconnects the electrical connection path between the control module and the looseness adjustment mechanism.
The head-mounted device holder according to claim 10, wherein the third switch comprises:

The third metal piece, the third metal piece extends along the length of the telescopic arm; the side of the telescopic arm facing the third metal piece is provided with a third elastic member; the third elastic member and the A third metal sheet is connected in series between the control module and the elasticity adjustment mechanism, and the third elastic member is in contact with the third metal sheet to be electrically connected;

The third elastic member can move with the telescopic arm to the outside of the end of the third metal sheet to disconnect the electrical connection path between the control module and the elasticity adjustment mechanism.
The head-mounted equipment support according to claim 11, wherein the head-mounted equipment support comprises a front shell fixed on the telescopic arm; the front shell is installed on the inner side of the telescopic arm; The head-mounted device bracket also includes a rear shell; the rear shell is arranged on the outer side of the telescopic arm and is engaged with the front shell;

The third metal sheet is arranged on the rear shell, and the third elastic member is arranged on one of the two telescopic arms that is close to the rear shell.
8. The head-mounted device holder according to claim 8, wherein the second elastic member comprises a second elastic piece; the second elastic piece comprises a first bending portion and a second bending portion that are connected;

The side of the first bending portion away from the second bending portion is a connecting plane, and the connecting plane is connected with the surface of the telescopic arm;

The second bent portion of the second elastic piece is for the second metal piece to contact.
The head-mounted device holder according to claim 8, wherein the second elastic member comprises two second elastic pieces arranged side by side, one of the second elastic pieces is electrically connected to the control module, and the other is electrically connected to the control module. The second elastic piece is electrically connected to the tightness adjustment mechanism; the second bent portions of the two second elastic pieces are both connected to the second metal piece.
The head-mounted device holder according to claim 11, wherein the three elastic pieces include a third elastic piece; each of the third elastic pieces includes a first bending portion and a second bending portion that are connected;

The side of the first bending portion away from the second bending portion is a connecting plane, and the connecting plane is connected with the surface of the telescopic arm;

The second bent portion of the third elastic piece is for the third metal piece to contact.
The head-mounted device holder according to claim 11, wherein the third elastic member comprises two third elastic pieces arranged side by side, one of the third elastic pieces is electrically connected to the control module, and the other The third elastic piece is electrically connected to the tightness adjustment mechanism; the second bent portions of the two third elastic pieces are both connected to the third metal piece.
The head-mounted device holder according to claim 1, wherein there are two telescopic arms, and the free ends of the two telescopic arms are partially overlapped.
The head-mounted device holder according to claim 17, wherein the elasticity adjustment mechanism comprises an adjustment gear and a drive assembly; the adjustment gear is located at the overlap of the two telescopic arms and is connected to the two telescopic arms. Meshing connection

The driving assembly is drivingly connected with the adjustment gear and electrically connected with the control module, and the driving assembly drives the adjustment gear to rotate to adjust the overlapping length of the two telescopic arms.
The head-mounted device holder according to claim 18, wherein the two telescopic arms are provided with guide grooves, the adjustment gear is received in the guide groove, and the adjustment gear meshes with the guide groove When the two telescopic arms move toward or away from each other, the adjusting gear rotates along the guide groove.
A head-mounted device support, which is characterized in that it comprises:

Telescopic boom

A tightness adjustment mechanism, connected to the telescopic arm, for adjusting the telescopic length of the telescopic arm;

The control module is electrically connected to the elasticity adjustment mechanism, and controls the elasticity adjustment mechanism to be in an adjustment state or a stop state according to an adjustment signal; wherein, when the elasticity adjustment mechanism is in an adjustment state, the elasticity adjustment mechanism drives The telescopic arm moves to change the telescopic length. When the elasticity adjustment mechanism is in a stopped state, the telescopic arm is fixed.
A head-mounted device, characterized by comprising the head-mounted device support and imaging lens of any one of claims 1-19, the imaging lens being mounted on the head-mounted device support; or, including the right The head-mounted device holder and imaging lens according to claim 20, wherein the imaging lens is mounted on the head-mounted device holder.